@page "/media/filler/presets"
@using ErsatzTV.Application.Configuration
@using ErsatzTV.Application.Filler
@using ErsatzTV.Core.Domain.Filler
@implements IDisposable
@inject IDialogService Dialog
@inject IMediator Mediator

<MudForm Style="max-height: 100%">
    <MudPaper Square="true" Style="display: flex; height: 64px; min-height: 64px; width: 100%; z-index: 100; align-items: center">
        <MudButton Variant="Variant.Filled" Color="Color.Primary" Class="ml-6" StartIcon="@Icons.Material.Filled.Add" Href="media/filler/presets/add">
            Add Filler Preset
        </MudButton>
    </MudPaper>
    <div class="d-flex flex-column" style="height: 100vh; overflow-x: auto">
        <MudContainer MaxWidth="MaxWidth.ExtraLarge" Class="pt-8">
            <MudText Typo="Typo.h5" Class="mb-2">Filler Presets</MudText>
            <MudDivider Class="mb-6"/>
            <MudTable Hover="true"
                      @bind-RowsPerPage="@_fillerPresetsRowsPerPage"
                      ServerData="@(new Func<TableState, CancellationToken, Task<TableData<FillerPresetViewModel>>>(ServerReloadFillerPresets))"
                      Dense="true"
                      @ref="_fillerPresetsTable">
                <ColGroup>
                    <MudHidden Breakpoint="Breakpoint.Xs">
                        <col/>
                        <col/>
                        <col style="width: 120px;"/>
                    </MudHidden>
                </ColGroup>
                <HeaderContent>
                    <MudTh>Name</MudTh>
                    <MudTh>Filler Kind</MudTh>
                    <MudTh/>
                </HeaderContent>
                <RowTemplate>
                    <MudTd DataLabel="Name">@context.Name</MudTd>
                    <MudTd DataLabel="Filler Kind">
                        @(
                        context.FillerKind switch
                        {
                            FillerKind.PreRoll => "Pre-Roll",
                            FillerKind.MidRoll => "Mid-Roll",
                            FillerKind.PostRoll => "Post-Roll",
                            FillerKind.Fallback => "Fallback",
                            FillerKind.Tail => "Tail",
                            _ => "None"
                        }
                        )
                    </MudTd>
                    <MudTd>
                        <div style="align-items: center; display: flex;">
                            <MudTooltip Text="Edit Filler Preset">
                                <MudIconButton Icon="@Icons.Material.Filled.Edit"
                                               Href="@($"media/filler/presets/{context.Id}/edit")">
                                </MudIconButton>
                            </MudTooltip>
                            <MudTooltip Text="Delete Filler Preset">
                                <MudIconButton Icon="@Icons.Material.Filled.Delete"
                                               OnClick="@(_ => DeleteFillerPreset(context))">
                                </MudIconButton>
                            </MudTooltip>
                        </div>
                    </MudTd>
                </RowTemplate>
                <PagerContent>
                    <MudTablePager/>
                </PagerContent>
            </MudTable>
        </MudContainer>
    </div>
</MudForm>

@code {
    private CancellationTokenSource _cts;

    private MudTable<FillerPresetViewModel> _fillerPresetsTable;

    private int _fillerPresetsRowsPerPage = 10;

    public void Dispose()
    {
        _cts?.Cancel();
        _cts?.Dispose();
    }

    protected override async Task OnParametersSetAsync()
    {
        _cts?.Cancel();
        _cts?.Dispose();
        _cts = new CancellationTokenSource();
        var token = _cts.Token;

        try
        {
            _fillerPresetsRowsPerPage = await Mediator.Send(new GetConfigElementByKey(ConfigElementKey.FillerPresetsPageSize), token)
                .Map(maybeRows => maybeRows.Match(ce => int.TryParse(ce.Value, out int rows) ? rows : 10, () => 10));
        }
        catch (OperationCanceledException)
        {
            // do nothing
        }
    }

    private async Task DeleteFillerPreset(FillerPresetViewModel fillerPreset)
    {
        var parameters = new DialogParameters { { "EntityType", "filler preset" }, { "EntityName", fillerPreset.Name } };
        var options = new DialogOptions { CloseButton = true, MaxWidth = MaxWidth.ExtraSmall };

        IDialogReference dialog = await Dialog.ShowAsync<DeleteDialog>("Delete Filler Preset", parameters, options);
        DialogResult result = await dialog.Result;
        if (result is { Canceled: false })
        {
            await Mediator.Send(new DeleteFillerPreset(fillerPreset.Id), _cts.Token);
            if (_fillerPresetsTable != null)
            {
                await _fillerPresetsTable.ReloadServerData();
            }
        }
    }

    private async Task<TableData<FillerPresetViewModel>> ServerReloadFillerPresets(TableState state, CancellationToken cancellationToken)
    {
        await Mediator.Send(new SaveConfigElementByKey(ConfigElementKey.FillerPresetsPageSize, state.PageSize.ToString()), cancellationToken);

        PagedFillerPresetsViewModel data = await Mediator.Send(new GetPagedFillerPresets(state.Page, state.PageSize), cancellationToken);
        return new TableData<FillerPresetViewModel> { TotalItems = data.TotalCount, Items = data.Page };
    }

}